beyer



Nov; 18 1924.

Filed Oct. 12 1922 2 Sheetskbheet 1 /A/VE/VTOR, EerTr and LBe e r,

A TTOHNEV WITNESS E YBEYER Nov. 18, 1 924. 1,515,993

I I APPARATUS FOR FEEDING VISCOUs MATERIALS w/vr/vsss 7 I INVENTOR,

BTTTCU1d. LEe er v Patented Nov. 18, 1 924.

UNITED s'r Ares 1 515 993 PATENT- oFFi cE.

7 BERTRANI) E. BEYER, or rA'rEasoN, NEW JERSEY, AssIGNoR T GENERAL ,NORIT co,

LTD, OF NEW YORK, N. .'Y., A CORPORATION.

APPARATUS FOR FEEDING VISOQUS MATERIALSQ.

Application fi led October 12,1922. Serial 110.594 224 To allwh om z't may con/0cm:

Be it known that I, BERTRAND E. BEYER, a

citizen of the United-States, residing at Paterson, in the county ofPassaic and State of NewjJersey, have invented certain new and useful Improvements in Apparatus for j-Fecding Viscous Materials, of ,which the I [following is a specification.

: object of the invention is to provide means 4 whereby the work can be done without exposing the workmen to the direct heat of the.

furnace; the invention contemplates the use v of a pocketed feeding member and means as- I sociated therewith for insuring the substanadapted to rest thereat on a support 0 havtially complete clearing of each pocket at the point of discharge.

In the drawings,

Fig. 1 is a sideelevation, partly in section, of the improved apparatus; and I Fig. 2 is a vertical sectional view on line Q-2, Fi 1. v w is ahopper into which the plastic material to be fed may be shovellcd or otherwise deposited. This hopper is shown surmounting the housings of two feedings means, but there may be any number of the latter. v

The housing of each feeding meansis a hollow vertically .p'ass'aged upright casting.

b shownflanged, at b, at its lower end and ing an opening 0' leading into the furnace with which the lower end of the passage of w the housing registers.

Two opposite. sides ,i of the housing stand in vertical planes, as shown-in Fig. 2, but the other two opposite outwardly (Fig; 1) to the contour of a cyl the blade.

sides are at two differentelevations curved" inder, thus conforming to the cylindrical clearer blade consisting of a shaft e jourspaces occupied by certain structures in revolving, now to be described.

In the lower of these spaces, d, revolves a.

naled. in thehousing with its axis coincident with that'of saidspa'ce and two arms fbolted thereon near the planiform sides of f-vthe housing and joined at their extremities which is described b by the blade-proper g, which is arranged parallel with the shaft but set in a plane preferably lying in a chord of the circular path in which the blade moves; the bladeproper 'g is offset from'the shaft a distance approximately equal to the radius of the spaced.

In the upper space, It, revolves a feeding member consisting of a shaft .a' journaled in the housing with its" axis coincident with that of said space and a cylinder ,7' keyed thereon and approximately.equalling in. diameter'that of said space, said cylinder pockets are formed the periphery'of they r latter. 5

The axes of the spaces d and h areso spaced from each other that the imaginary cylinders to which saidspacesjconform in- 'tersect each other, wherefore the blade and. feeding member in rotating move each through the cylindrical space which the other occupies I in rotating.

-- The blade and feeding member are geared t for rotation together so that the former will coincide with (or enter and leave) each pocket at regular intervals during theirrotation; in 1; 1e present instance, there bein' three ockets and the feeding member an blade eing arranged to rotate in opposite directions, the speed ratio isthree revolutions of the blade to oneof the feeding member. To this end is is a pinion fixed on shaft 0 and meshing with a gearZ fixed on :shaft'i; these are shown in full lines in Fig. 2 and in dotted lines in Fig. -1 at the left,

but omitted at the right. The thus interr geared members may be driven inany way,

as from a suitablyrotated shaft 0?. connected by bevel gearing o with a rotary" shaft connected with the shaft e by the worm-an worm-wheel connection g.

As to its length, each pocket is as long as Its width and depth and general transverse form are determined as follows,

that is to say, in cross-section the surface ,of

the pocket is parallel and close to the curve I the extremity (the: free or outer edge 0 blade proper g) of theblade with respect toftlie feeding memher when they arerotat-ing in unison, as. the result of being interg'eared, and assum:

ing as stated that they are timed so that I the pocket receives the blade while the latv crements from the mass but perfect cleariing' ter is moving through that third of its cireular path which is next to the member j;

in other words, the member and blade beingintergeared so as to rotatetogether in such relation and at such speed ratio that the blade will enter the pocket at regular in ''tervals during their rotation, the pocket has its surface parallel and close to the curve described by the extremity of the blade with of each pocket at the point of discharge, when it faces downward, is efi'e'ted. This last is a very-important consideration, for the mass is sticky and adheres very tenac-iously v in the pockets; and if each pocket is not substantially perfectly evacuated at the point of discharge, the material," being sticky and tending to pack, becomes a serious factor in imposingresistance to rotation of the feed member and blade, so that an. undue load is put on the driving means and there is likelihood of injuring the mechanism and the feeding operation is retarded.

'Since, the feeding member and blade are made in the exampleshown to rotate in opposite directions, there results, when each pocket is shaped as stated,.an acute cutting edge j at whatmay be termed the following margin of the pocket, which very materially reducesthe resistance of the feedgravity and fills the pocket and that-the edge 7' then acts to plow or cut its way through themass so as to detach the portion Which the pocket thus receives. There further results a material lessening of the amount of fumes and heat that-escape upwardly through the housing a, whiaih provided at '1" with a vent for them.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent is In combination, a rotary feeding member, a rotary clearer blade havingits'axis of rotation exterior of, but the circular path in which its extremity travels extending into, the space in which said member rotates, said member having a pocket for the plastic material to be fed positioned therein so as to vreceive said blade, and means gearing said member and blade to rotate together in such BERTRAND E. BEYER.

relation and at such speed ratio that the "blade will enter the pocket at regular in- 

